Table 12: Trip LED (red)
LED state Description
Disabled Normal operation.
Enabled A protection function has tripped. An indication message is displayed if the auto-
indication feature is enabled in the local HMI.
The trip indication is latching and must be reset via communication, LHMI or binary
input on the LEDGEN component. To open the reset menu on the LHMI, press .
Flasing Configuration mode.
Alarm indicators
The 15 programmable three-color LEDs are used for alarm indication. An individual alarm/status
signal, connected to any of the LED function blocks, can be assigned to one of the three LED
colors when configuring the IED.
Table 13: Alarm indications
LED state Description
Disabled Normal operation. All activation signals are Disabled.
Enabled • Follow-S sequence: The activation signal is Enabled.
• LatchedColl-S sequence: The activation signal is Enabled, or it is off but the indication has
not been acknowledged.
• LatchedAck-F-S sequence: The indication has been acknowledged, but the activation signal
is still Enabled.
• LatchedAck-S-F sequence: The activation signal is Enabled, or it is off but the indication has
not been acknowledged.
• LatchedReset-S sequence: The activation signal is Enabled, or it is off but the indication has
not been acknowledged.
Flashing • Follow-F sequence: The activation signal is Enabled.
• LatchedAck-F-S sequence: The activation signal is Enabled, or it is off but the indication has
not been acknowledged.
• LatchedAck-S-F sequence: The indication has been acknowledged, but the activation signal
is still Enabled.
1MRK 500 129-UUS B Section 6
LHMI overview
670/650 series 31
Quick start guide
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